CVE-2019-15027 : Vulnerability Insights and Analysis
Learn about CVE-2019-15027, a vulnerability in the MediaTek eMMC subsystem on Android devices, allowing attackers to gain root privileges. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
The MediaTek Embedded Multimedia Card (eMMC) subsystem in Android devices using MT65xx, MT66xx, and MT8163 SoC can be exploited by attackers to gain root privileges by using certain characters in a file name located in the /data directory. This vulnerability occurs because the function clear_emmc_nomedia_entry in the file meta_clr_emmc.c invokes a command that can be manipulated by attackers.
Understanding CVE-2019-15027
This CVE identifies a vulnerability in the MediaTek eMMC subsystem that allows attackers to execute arbitrary commands as root on specific Android devices.
What is CVE-2019-15027?
The vulnerability arises from the way the clear_emmc_nomedia_entry function handles file names during the eMMC clearance process, potentially leading to unauthorized root access.
The Impact of CVE-2019-15027
Exploiting this vulnerability could result in attackers gaining root privileges on affected Android devices, compromising their security and integrity.
Technical Details of CVE-2019-15027
The technical aspects of the vulnerability provide insights into its nature and potential risks.
Vulnerability Description
The vulnerability allows attackers to manipulate file names in a way that triggers the execution of arbitrary commands as root, posing a significant security risk.
Affected Systems and Versions
- Android devices using MT65xx, MT66xx, and MT8163 SoC
Exploitation Mechanism
- Attackers can exploit the vulnerability by inserting specific characters in a file name within the /data directory, triggering unauthorized root access.
Mitigation and Prevention
Addressing CVE-2019-15027 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Monitor for any suspicious activities related to file manipulation in the /data directory
- Implement strict file naming conventions to prevent malicious exploitation
Long-Term Security Practices
- Regularly update device firmware to patch known vulnerabilities
- Conduct security audits to identify and mitigate potential risks
Patching and Updates
- Apply security patches provided by MediaTek or device manufacturers to address the vulnerability